Question: When did Valencia have a population of 785,732?
Paraphrase: Valencia had once a population of 785,732. What year was it?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q8818 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '785732.0')) . ?s pq:P585 ?value}